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Finding the Fourth Proportional to 463,929.20, 640,211.86 and 270,324.82

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Solution

The fourth proportional to 463,929.20, 640,211.86 and 270,324.82 is: 373,042.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,929.20 : 640,211.86 = 270,324.82 : x
  2. Step 2: Convert to fraction form
    463,929.20/640,211.86 = 270,324.82/x
  3. Step 3: Cross multiply
    463,929.20x = 640,211.86 × 270,324.82
  4. Step 4: Simplify right side
    463,929.20x = 173,065,155,816.37
  5. Step 5: Solve for x
    x = 173,065,155,816.37/463,929.20
  6. Step 6: Final answer
    x = 373,042.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.